NetworkJoinMessages - сообщения входа, выхода и переходов для прокси

New Features

• Adds support for notifying players with vanish permissions on silent movement, in addition to holders of networkjoinmessages.silent when NotifyAdminsOnSilentMove is enabled (#54 #56)
  • OtherPlugins.SayanVanish.NotifyVanishEnabledPlayersOnSilentMove & OtherPlugins.PremiumVanish.NotifyVanishEnabledPlayersOnSilentMove - required for players with vanish permissions (SayanVanish or PremiumVanish) to receive silent message notifications
  • OtherPlugins.PremiumVanish.NotifyRespectVanishLevels - when enabled, only players whose vanish level meets or exceeds the silent player's level will receive the notification (#53)
  • OtherPlugins.PremiumVanish.MaxLevel - configures the maximum PremiumVanish vanish level used when NotifyRespectVanishLevels is enabled (#60)

Development

• Converts CorePlayer to an abstract class and applies Lombok for clarity and consistency (#55 #58)
  • setDisconnecting now requires a boolean argument
  • getPremiumVanishHidden has been renamed to isPremiumVanishHidden
• Adds several test files covering broadcast, player, storage, and util packages (#59)
  • broadcast (60 tests): MessageFormatterTest, ReceiverResolverTest
  • player (57 tests): LeaveJoinBufferManagerTest, PlayerStateStoreTest, SilenceCheckerTest
  • storage (42 tests): TextPlayerJoinTrackerTest, modifies H2PlayerJoinTrackerTest
  • util (80 tests): LegacyColorTranslatorTest, PremiumVanishLevelUtilTest

Related PR: #57